Aerie (OFFLINE) to Gymshark leggings size
The short answer
Aerie (OFFLINE) XS is Gymshark XXS or XS by the two brands' own charts. 3 of 6 Aerie (OFFLINE) sizes land on a different label at Gymshark.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Aerie (OFFLINE) | Aerie (OFFLINE) builds it for | Gymshark, by chart | Same label | Gymshark builds it for | Gymshark also prints |
|---|---|---|---|---|---|
| XXS | waist 22.5 to 23.5 in, hip 32 to 33 in | XXS | XXS | waist 24 in, hip 35.5 in | US numeric 2-4 |
| XS | waist 24.5 to 25.5 in, hip 34 to 35 in | XXS or XS | XS | waist 24 in, hip 35.5 in | US numeric 2-4 |
| S | waist 26.5 to 27.5 in, hip 36 to 37 in | XS or S | S | waist 26 in, hip 37.5 in | US numeric 4-6 |
| M | waist 28.5 to 29.5 in, hip 38 to 39 in | S or M | M | waist 28 in, hip 39.5 in | US numeric 6-8 |
| L | waist 31 to 32.5 in, hip 40.5 to 42 in | L | L | waist 32 in, hip 43.5 in | US numeric 10-12 |
| XL | waist 34 to 36 in, hip 43.5 to 45.5 in | XL or XXL | XL | waist 34 in, hip 45.5 in | US numeric 12-14 |
| XXL | waist 38 in, hip 47.5 in | not made | XXL | not published | not published |
What wearers say
Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.
Sources
- Aerie (OFFLINE) size guide, read on 2026-09-18. Aerie (OFFLINE) on TrueToSize
- Gymshark size guide, read on 2026-09-17. Gymshark on TrueToSize